Proud members of the International ThermoWood Association & National Hardwood Lumber Association
“Crafted from responsibly sourced hardwoods, Ironbark siding is sustainable strength made simple.”
Our siding doesn’t just look good — it saves up to 30% on installation time and comes backed by a 60-year warranty.
Beauty and Durability, Guaranteed
IronBark siding is built to stand the test of time. Through thermal modification, our Canadian hardwoods gain unmatched resistance to moisture, insects, and decay, ensuring long-term stability and beauty for your home. With a 60-year warranty against rot, IronBark siding is the smart choice for strength you can rely on in any climate.
Strength Through Sustainability
By heating hardwoods to over 200°C with nothing but heat and steam, we alter the wood at a molecular level. This sustainable process makes the wood hydrophobic and naturally resistant to insects and decay, allowing species once reserved for interior use to thrive outdoors. The result is durable, low-maintenance siding and decking backed by a 60-year warranty against rot and decay.
Customizable by Design
We don’t believe in one-size-fits-all. Every project has its own vision, and we’re here to bring it to life. From unique dimensions to specific profiles, our team works with you to deliver siding and decking that matches your exact specs.
Sustainably Sourced
Responsibly harvested Canadian hardwoods, treated with only heat and steam.
Naturally Protected
Built-in resistance to moisture, insects, and decay.
Engineered To Endure
Strengthened at the molecular level for decades of performance.
Uniquely Yours
Every project has its own story. We tailor profiles, dimensions, and finishes so your siding or decking reflects your exact vision.
Learn more about our commitment to sustainability and innovation in this Manufacturing in Focus feature, where we share our journey and mission to build a greener future with thermally modified wood.
Our siding boards are available in 6 to 12-foot lengths (most commonly 8–10 ft) and are carefully cut to match standard stud spacing—delivering a seamless installation and reducing material waste.
Precision in Every Batch
Our IronBark siding is produced using advanced kiln technology that guarantees consistency and quality. With two kilns—a large 30m³ unit for high-volume projects and a smaller 3m³ unit for specialty runs—we can process orders of any size with efficiency and care. This flexibility ensures your siding project is treated to the highest standards and delivered right when you need it.
Everything You Need to Know About Siding
To make sure no questions go unanswered, we’ve put together a dedicated video covering everything you need to know about thermally modified siding. From the science of thermal modification, to available wood species, profiles, installation methods, and maintenance tips, this video is your complete guide to making the right choice for your project.
Explore Our Siding Profiles
Explore a range of profiles crafted to highlight the natural beauty of thermally modified wood while ensuring lasting protection against the elements.
Single Rabbet
Double Rabbet
Triple Rabbet
Quadruple Rabbet
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